coating



MISCELLANEOUS PRODUCTS.

lurrnn STATES n'rnu'r men,

GOODMAN CHARLES MANDL EBERG, HENRY LESSER ROTHBAND, AND SAMUEL LAIVRENCE MAND'LEBERG, OF MANCHESTER, ENGLAND.

PROCESS OF MANUFACTURING RUBBER GOODS.

SPECIFICATION forming part of Letters Patent No. 441,501, dated November 25, 1890. Application filed February 5, 18 0. Serisl lo. 839,338. (No specimens.) Patented in England Nova iher 14, 1888. No. 16,641;

in France March 14, 1889, XXXIX, 1,793 and XXIII, 1, 747.

To all whom it may concern.

Be it known that we, GOODMAN CHARLES -I\IIANDLEBERG, HENRY Lnssnn ROTHBAND, and SAMUEL LAWRENCE MANDLEBERG, sub-- jects of Her Majesty the Queen of the United Kingdom "of Great Britain and Ireland, residing at Manchester, in the county of Lancaster, England, have invented certain new and useful Improvements in the Process of llrlanufacturing Rubber Goods, (for which we have obtained Letters Patent for the United Kingdom of Great Britain and Ireland, dated November 1-1, 1888, No. 16,541; in France,

dated March 14:, 1889, No.196,712; in Belgif to which it appertains to make and use thesame.

The invention relates to the manufacture of water-proof goods and garments, and particularly to rubber goods and garments, and is designed and has for its object important and material improvements whereby such goods or garments are rendered more durable and better adapted for use in warm or hot climates than those heretofore found on the market.

The further object of our invention is to produce odorless rubber goods and garments; and it consists in the process of manufacture, substantially as hereinafter described.

Although our process is applicable to all grades or classes of fabrics heretofore used in the manufacture of these goods, we will describe the same in its application to such goods or garments made from the liner and more delicate single-texture fabrics, and which are more especially designed for wear by ladies.

In carrying out our invention the fabric, whether of cotton, wool, or silk, or a mixture of these fibers, is prepared by what is termed spreading or coating in the ordinary Way with several coats of the proofing, the firstcoat of which consists of a dongh or comhlo. 196,712; in Belgium March 15,1889,N0. 85,495, and in Austria-Hungary August 81, 1889,

pound of india-rubber, litharge, and a naphtha solvent. The next coat consists of a similar compound, to which is added a vulcanizing agent, such as sulphur. Finally we apply a last coat, substantially like the first,

but containing a smaller per cent. of litharge.

In practice'we usually apply three coats of the compound that contains the vulcanizing agent, and which we term the intermediate coating, the first and last coating being the foundation or base and the finishing coatings, respectively, one or more of each of which may be applied. WVe thus obtain a water-proof fabric whose intermediate strat um of waterproofing substance alone contains a vulcanizing agent.

The mode of mixing and spreading of the dough, as well as the proportions of the ingredients of the latter, are well known to the trade, and the said proportions of ingrediei'its may be varied, as described or required.

In some cases whiting may be added to the dough, or materials equivalent thereto, and when it is desired. to produce a farina finishthat is to say, when a farina-coated fabric or garment is to be produced-farina or its equivalent is applied in the usual manner. The fabric prepared as described is then partially vulcanized by exposure to a temperature of about 250 Fahrenheit for a short time. This is done in the well-known stoves, dry air being used as the heating agent. The partially-vulcanized material is -then cut up and made into garments in the ordinary manner, the seams being secured together with the usual rubber cement, which is a solution having sulphur in itthat is to say, a cement that will vulcanize. The garments made from the partially-vulcanized-material are then completely vulcanized and simulta neously deodorized by exposure to atempera ture higher than that used in the partial vulcanization i'ian'iely, to a temperature of about 260 .lfiahrenheit. This is also carried out in. the usual stoves, and during the earlier part of the stovin-g process the air laden with the ill-smelling volatile vapors is allowed to escape, this being continued so long as the escaping air is charged with such vapors. A

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thoroughly vulcanized and deodorized article is thus obtained.

it desired, the garments may be perfumed by exposure to the vapors or air laden with the vapors of any suitable or desired essential oil--such as oilof lavender, for instance-and this may be effected immediately after the vulcanizing and deodorizing process and in the same apparatus.

If the water-proof fabric is intended as a commercial product, the material coated as above described is completely vulcanized and deodorized after the spreading, and perfumed, if desired. The garments made from this material may be subjected to afinal stoving p recess in order to deodorize the cement used for uniting the seams.

The mode of preparing the fabric as de' scribed we believe was unknown prior to our invention, and we claim that a more durable and pliable water-proof fabric thereby obtained. We also believe that before our invention a water-proof garment has not been made from a partially-vulcanized material, whether such material is prepared or coated, as described, or in any other manner, and we claim that by first partially vulcai'iizing the material, then making the garments and completely vulcanizing the latter, we not only more thoroughly vulcanize the water-proof coatings, but we also more thoroughly deodorize the same and materially enhance the properties of the waterproofing compound and the durability of the garment.

Having now described our invention, what we claim, and desire to secure by Letters Patent, is-

1. The process of manufacturing in dia-rubber garments, substantially as herein described, which consists in partially vulcanizing the prooied or coated fabric, making'the garmentstrom such partiall wvulcanized fabric, and completely vulcanizing and simultaneously deodorizing the garments.

2. The process of manufacturing india-rub' ber water-proof fabrics, substantially as herein described, which consists in first coating a fabric with a rubber compound devoid of a vulcanizing agent, next. with a rubber compound combined with a vulcanizlng agent, and lastly with a rubber compound devoid of a vulcanizin g agent, for the purposes specified.

3. The process of manufacturingindia-rubberwater-proof fabrics, substantially as herein described, which eonsists'in first coating a fabric with a compound composed of rubber and litharge and a suitable solvent; secondly, with a like compound combined with a vulcanizing agent, as sulphur; and, lastly,with a compound similar to that of the first coating but containing less litharge.

l. The process of manufacturing rubber water-proof goods, substantially as herein described, which consists in first coating a fabric with a rubbercompound devoid of a vulcanizing agent, then with a rubber compound containing such vulcanizing agent, and lastly With a rubber compound devoid of a vulcanizing agent, exposing the fabric so treated to a temperature of about 250 Fahrenheit to partially vuleanize the same, making the garments from the partially-vulcafiized fabric in the usual manner, and subjecting the finished garments to a vulcanizing and deodorizing temperature of about 260 Fahrenheit.

In testimony whereof We aifix our signatures in the presence of two witnesses.

GOODMAN CHARLES l'hllillllllllililltl. HENRY LESSER ROlIlBAND. SAMUEL LAWRENCE lilANDLlllll'llttl Witnesses: V PETER J. LIRSEY, WILLIAM FAULK'NER. 

